pipeline: move End Of Stream to component

DP components cannot access pipeline objects. Move the End Of Stream
flag to the component type.

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>

Author: lyakh

src/audio/component.c

@@ -506,7 +506,7 @@ static bool comp_check_eos(struct comp_dev *dev)
 	enum sof_audio_buffer_state sink_state = AUDIOBUF_STATE_INITIAL;
 	struct comp_buffer *buffer;
 
-	if (!dev->pipeline->expect_eos)
+	if (!dev->expect_eos)
 		return false;
 
 	comp_dev_for_each_producer(dev, buffer) {

src/audio/host-zephyr.c

@@ -396,7 +396,7 @@ static inline bool host_handle_eos(struct host_data *hd, struct comp_dev *dev,
 	struct sof_audio_buffer *buffer = &hd->local_buffer->audio_buffer;
 	enum sof_audio_buffer_state state = audio_buffer_get_state(buffer);
 
-	if (!dev->pipeline->expect_eos)
+	if (!dev->expect_eos)
 		return false;
 
 	if (!avail_samples) {

src/audio/module_adapter/module/cadence.c

@@ -541,7 +541,7 @@ int cadence_codec_process_data(struct processing_module *mod,
 		return 0;
 	}
 
-	if (dev->pipeline->expect_eos) {
+	if (dev->expect_eos) {
 		/* Signal that the stream is expected to end anytime soon */
 		API_CALL(cd, XA_API_CMD_INPUT_OVER, 0, NULL, ret);
 		if (ret != LIB_NO_ERROR) {
@@ -596,7 +596,7 @@ int cadence_codec_process_data(struct processing_module *mod,
 		return ret;
 	}
 
-	if (dev->pipeline->expect_eos) {
+	if (dev->expect_eos) {
 		/*
 		 * AAC decoder cannot signal DONE, check if it stopped
 		 * producing data when EOS is expected

src/audio/pipeline/pipeline-graph.c

@@ -344,6 +344,39 @@ int pipeline_free(struct pipeline *p)
 	return 0;
 }
 
+static int pipeline_comp_set_eos(struct comp_dev *current,
+				 struct comp_buffer *calling_buf,
+				 struct pipeline_walk_context *ctx, int dir)
+{
+	if (ctx->comp_data != (void *)current->pipeline)
+		return 0;
+
+	current->expect_eos = *(bool *)ctx->buff_data;
+
+	return pipeline_for_each_comp(current, ctx, dir);
+}
+
+void pipeline_set_eos(struct pipeline *p, bool eos)
+{
+	struct pipeline_walk_context walk_ctx = {
+		.comp_func = pipeline_comp_set_eos,
+		.comp_data = p,
+		.buff_data = &eos,
+	};
+	struct comp_dev *start;
+	int dir;
+
+	if (p->source_comp->direction == SOF_IPC_STREAM_PLAYBACK) {
+		dir = PPL_DIR_UPSTREAM;
+		start = p->sink_comp;
+	} else {
+		dir = PPL_DIR_DOWNSTREAM;
+		start = p->source_comp;
+	}
+
+	walk_ctx.comp_func(start, NULL, &walk_ctx, dir);
+}
+
 static int pipeline_comp_complete(struct comp_dev *current,
 				  struct comp_buffer *calling_buf,
 				  struct pipeline_walk_context *ctx, int dir)

src/include/sof/audio/component.h

@@ -647,6 +647,7 @@ struct comp_dev {
 	/* runtime */
 	uint16_t state;		   /**< COMP_STATE_ */
 	uint32_t frames;	   /**< number of frames we copy to sink */
+	bool expect_eos;	   /**< end of stream expected */
 	struct pipeline *pipeline; /**< pipeline we belong to */
 
 	struct task *task;	/**< component's processing task used

src/include/sof/audio/pipeline.h

@@ -70,7 +70,6 @@ struct pipeline {
 	int32_t xrun_bytes;		/* last xrun length */
 	uint32_t status;		/* pipeline status */
 	struct tr_ctx tctx;		/* trace settings */
-	bool expect_eos;		/* pipeline is expecting end of stream */
 
 	/* scheduling */
 #ifdef CONFIG_IPC_MAJOR_4
@@ -225,6 +224,13 @@ void pipeline_posn_grant_access(struct k_thread *thread);
  */
 int pipeline_reset(struct pipeline *p, struct comp_dev *host_cd);
 
+/**
+ * \brief Sets End Of Stream state for all devices in the pipeline.
+ * \param[in] p pipeline.
+ * \param[in] eos End Of Stream state.
+ */
+void pipeline_set_eos(struct pipeline *p, bool eos);
+
 /**
  * \brief Walks the pipeline graph for each component.
  * \param[in] current Current pipeline component.

src/ipc/ipc4/handler-user.c

@@ -256,7 +256,7 @@ int ipc4_pipeline_prepare(struct ipc_comp_dev *ppl_icd, uint32_t cmd)
 
 	switch (cmd) {
 	case SOF_IPC4_PIPELINE_STATE_RUNNING:
-		if (ppl_icd->pipeline->expect_eos) {
+		if (ppl_icd->pipeline->source_comp && ppl_icd->pipeline->source_comp->expect_eos) {
 			ipc_cmd_err(&ipc_tr, "pipeline %d: Can't transition from EOS to RUNNING",
 				    ppl_icd->id);
 			return IPC4_INVALID_REQUEST;
@@ -320,7 +320,7 @@ int ipc4_pipeline_prepare(struct ipc_comp_dev *ppl_icd, uint32_t cmd)
 				    ppl_icd->id, status);
 			return IPC4_INVALID_REQUEST;
 		}
-		ppl_icd->pipeline->expect_eos = true;
+		pipeline_set_eos(ppl_icd->pipeline, true);
 		return 0; /* Must return here. Any other transition clears expect_eos. */
 	/* special case - TODO */
 	case SOF_IPC4_PIPELINE_STATE_SAVED:
@@ -334,7 +334,7 @@ int ipc4_pipeline_prepare(struct ipc_comp_dev *ppl_icd, uint32_t cmd)
 	if (ret < 0)
 		return IPC4_INVALID_REQUEST;
 
-	ppl_icd->pipeline->expect_eos = false;
+	pipeline_set_eos(ppl_icd->pipeline, false);
 
 	return ret;
 }

test/cmocka/src/audio/mux/demux_copy.c

@@ -169,7 +169,7 @@ static int setup_test_case(void **state)
 	dummy_pipe = test_malloc(sizeof(*dummy_pipe));
 	if (!dummy_pipe)
 		return -ENOMEM;
-	dummy_pipe->expect_eos = false;
+	dev->expect_eos = false;
 	dev->pipeline = dummy_pipe;
 
 	mod = comp_mod(dev);

test/cmocka/src/audio/mux/mux_copy.c

@@ -191,7 +191,7 @@ static int setup_test_case(void **state)
 	dummy_pipe = test_malloc(sizeof(*dummy_pipe));
 	if (!dummy_pipe)
 		return -ENOMEM;
-	dummy_pipe->expect_eos = false;
+	dev->expect_eos = false;
 	dev->pipeline = dummy_pipe;
 
 	mod = comp_mod(dev);